Once GM acquires the shares, it will be the second-biggest holder of PSA, behind the Peugeot Family Group.

FORBES: GM's Franco-American Trial Marriage With Peugeot

Major REITs including Simon Property Group ( SPG), Public Storage ( PSA) and Vornado ( VNO) trade at much higher valuations, based on PE ratio.

FORBES: Connect

Some favored blue-chip REIT selections include Kimco Realty ( KIM), Realty Income ( O), National Retail Properties ( NNN), Public Storage ( PSA), Tanger Factory Outlets ( SKT), Simon Property Group ( SPG), Taubman Centers ( TCO), Federal Realty ( FRT), Prologis Inc. ( PLD) and Ventas Inc. ( VTR).

FORBES: Eisenhower Paved the Way for REIT Investors to Enjoy Durable Dividends